`JsonRpcProvider` `pollingInterval` option is not used in `tx.wait()`

[PierreJeanjacquot]

Ethers Version

ethers@6.11.1

Search Terms

JsonRpcProvider, pollingInterval

Describe the Problem

The pollingInterval option of JsonRpcProvider is not used for transaction wait(), instead a default 4000 ms value is used.

It may be linked to the pollingInterval value being hardcoded in the constructor.

ethers.js/src.ts/providers/provider-jsonrpc.ts

Line 1165 in ad5f1c5

this.#pollingInterval = 4000;

this fix in provider-jsonrpc.ts seems to do the trick but I did not check the other impacts:

export class JsonRpcApiPollingProvider extends JsonRpcApiProvider {
    #pollingInterval;
    constructor(network, options) {
        super(network, options);

        this.#pollingInterval = options.pollingInterval ?? 4000; // use option when it exists
    }

Also I'm not sure why 4000 is hardcoded as the value is available in defaultOptions.pollingInterval

Code Snippet

import { JsonRpcProvider, Wallet } from "ethers";

// The following snippet can be tested on a hardhat or anvil node with a 1s blocktime.

const provider = new JsonRpcProvider("http://localhost:8545", undefined, {
  pollingInterval: 1000,
});

const wallet = new Wallet(process.env.PRIVATE_KEY).connect(provider);

console.log("provider.pollingInterval", provider.pollingInterval);
// provider.pollingInterval 4000
console.log(
  'provider._getOption("pollingInterval")',
  provider._getOption("pollingInterval")
);
// provider._getOption("pollingInterval") 1000

const tx = await wallet.sendTransaction({ to: wallet.address, data: "0x" });
console.time("tx");
await tx.wait();
console.timeEnd("tx");
// tx: 4.094s

Contract ABI

No response

Errors

No response

Environment

No response

Environment (Other)

No response

[sealer3]

As a temporary fix, you can set the pollingInterval property after the constructor:

provider.pollingInterval = 1000;

[ricmoo]

This does appear to be a bug. I'll get a fix out in the next patch.

[ricmoo]

Fixed in v6.12.1.

Thanks! :)